Needle-motion for looms.



W. WATTIE. I

NEEDLE MOTION FOR LOOMS.

APPLICATION FILED MAY 11, 1907.

1,009,872, Patented Nov. 28, 1911.

UNITED STATES PATEN T OFFICE.

WILLIAM WATTIE, OF WORCE STER, MASSACHUSETTS, ASSIGNOR T0 GROMPTON & KNOWLES LOOlVI WORKS, A GORPGRA'IION OF MASSACHUSETTS.

NEEDLE-MOTION FOR LOOMS.

Original application filed February 3, 1905, Serial No.

To all whom it may concern:

Be it known that I, WILLIAM Nn'rrln, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Needle-Motions for Looms, of which the following is a specification.

My invention relates to a needle motion or mechanism, adapted to be used in connection with looms for weaving different classes of fabrics, and particularly for weaving cane fabric, or fabrics in which the material forming the filling is drawn in, or inserted in the fabric, by being grasped by the holding jaws of the needle, forming a part of the needle motion.

needle motion is shown and described, but not claimed in my application for a patent, Serial No. 243,925, of which this application is a division.

The object of my invention is to provide an improved needle motion.

My invention consists in certain novel features of construction of my needle motion, as will be hereinafter fully described.

I have shown in the drawing a needle motion, detached, embodying my improvements, sufficient to enable those skilled in the art to understand the construction and operation thereof.

The drawing shows a front view of a needle motion embodying my improvements.

In the accompanying drawing, 1 is the loom side or end frame, 2 is a bracket or stand secured upon the outer side of the frame 1, on its upper part. 3 is a horizontal support or guide-way for the reciprocating needle carriage 4L. A link 5 connects the carriage at with the rocking lever or arm 6, which is attached at its lower end in this instance to a shoe 6, which is pivotally mounted in an elongated slot Y in an arm or projection 7, secured to the frame 1, and adapted to be secured to the floor. The shoe 6 of the lever (3 is connected, through an adjustable connector 8, with the lower end of the intermediate lever 9, which is pivoted at its upper end on the stand 2. The intermediate lever 9 is'pivotally at- Specification of Letters Patent.

Patented Nov. 28, 1911. 243,925. Divided and this application filed May 11,

Serial No. 373,132.

tached to the outer end of a cam lever 10, having an elongated slot or opening 10 therein, through which extends the driven shaft 11, on which is fast a cam 12. The cam 12 has a cam groove 12 in one face thereof, into which extends and travels a roll 10 on the cam lever 10.,

The needle 13 is secured to the needle block or carriage 1, and has a reciprocating motion therewith in a horizontal plane on the guide-way 3. Rolls 14 and 14: mounted on the guide-way 3 at the inner end thereof, are preferably used to guide the needle 13 at its front end. The needle 13 is provided with spring jaws 13 on its inner end to catch or grip the cane, or other filling, and draw 1t through the shed. The spring jaws 13 are opened, as shown in Fig. l, by means ofa longitudinally sliding rod 15, which extends within the needle 13, with its outer end extending beyond the outer end of the needle, and having a helically coiled expansion spring 16 thereon, confined between the enlarged end 15 of the sliding rod 15, and a boss 17 on the needle carriage l.

Pivotally mounted on the needle carriage 4, to move therewith, is an angle lever 18, one arm of which extends downwardly in the path of, and adapted to be engaged by the outer end of the rod 15, within the needle 13, and the other arm of which has in this instance a side projection 18 thereon, which extends in the path of and is adapted to ride on the inclined or cam surface 19 on a plate 19, in this instance pivotally mounted on a stand 20 on the upper surface of the guide-way 3 at the outer end thereof, when the needle is in its outward position, as shown in the drawing.

On the outward movement of the needle carriage l and the needle 13, a projection 13' on the angle lever 18 rides up on the cam surface 19, and causes the opposite arm of the angle lever 18 to push inwardly the rod 15, against the action of the spring 16, and open the spring jaws 13, as shown in the drawing, to release the filling, not shown, between the jaws. As the projection 18 on the angle lever 18 passes off of the cam surface 19, the spring 16 acts to move outwardly the rod 15 and rock the angle lever'lS, allowing the jaws 13 of the needle 13 to come together.

At the inner end of the guide-way 3 is arranged a second inclined or cam surface, comprising a plate 21, in this instance pivotally mounted at one end on a stand 22 bolted upon the upper side of the guide-way 3, and having a side lug 21, which rests upon the upper edge of the guide-way 3. As the needle carriage 4 and the needle 13 move inwardly, the projection 18 on the angle lever 18, rides up on the free end of the plate 21, and moves inwardly the other arm of the angle lever 18, to push inwardly the rod 15 and open the jaws 13, preparatory to seizing the filling.

lVhen the projection 18 on the angle lever 18 passes off the inner end of the plate 21, the spring 16 acts to move outwardly the rod 15, and allow the jaws 13 to close on the filling.

The inner end of the link 5 limits the rocking movement of the angle lever 18, between the end of said link and the outer end of the rod 15.

The operation of the angle lever 18, to positively open the spring jaws 13, and the action of the spring 16 to close said jaws, at or near the inward and outward position of the needle 13, is repeated at each inward and outward movement of said needle.

In case of weaving fabrics of different widths, in order to regulate the time of the opening and closing of the jaws 13, when the needle is in its outward position, the

stand 20, carrying the plate 19, may be adjusted on the guide-way 3, in the direction of the length of the guide-way, for example, in case of weaving a wider fabric, the stand 20 is moved outwardly, with the plate 19, as indicated by broken lines in the drawing, so that the needle and carriage will be moved outwardly a greater distance before the angle lever 18 engages the inclined surface 19, to move the rod 15 and open the jaws 13.

The rod 8 forming a part of the connector S, and having a right hand thread on one end, and a left hand thread on the other end, is turned in the threaded bosses 8 in one direction, to increase the length of the connector 8, and in the other direction to shorten the connector, in the usual and well known way.

By this construction, fabrics of different widths may be woven on the same loom, without any waste of the filling.

It will be understood that the details of construction of my improvements in needle motion may be varied if desired, and my needle motion is adapted to be combined with looms for weaving different classes of fabrics.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A needle operating mechanism for a needle having movable jaws, comprising a guide-way*for the needle carriage, and a plate pivotally mounted on the guide-way near the outer end thereof, and having a side extension thereon forming an inclined or cam surface in the path of a lever or arm pivotally mounted on the needle carriage, and said lever or arm having a side extension thereon to extend over and engage said inclined or cam surface, and a second plate pivotally mounted near the inner end of said guideway, and having an extension thereon to rest upon the upper edge of the guide-way, said second plate in the path of said pivoted lever or arm on the needle carriage, and adapted to be engaged by the extension on said lever or arm which passes onto said plate, and off of the inner end thereof and back under it, on the return of the needle carriage.

2. A needle operating mechanism for a needle having movable jaws, comprising a guide-way for the needle carriage, and an adjustable plate, pivotally mounted on the guide-way near the outer end thereof, and having a side extension thereon, forming an inclined or cam surface in the path of a lever or arm pivotally mounted on the needle carriage, and said lever or arm, having a side extension thereon to extend over and engage said inclined or cam surface, and a second plate pivotally mounted near the inner end of said guide-way, and having an extension thereon to rest upon the upper edge of the guide-way, said second plate in the path of said pivoted lever or arm on the needle carriage, and adapted to be engaged by the extension on said lever or arm, which extension passes onto said plate, and off of the inner end thereof, and back under it on the return of the needle carriage.

3. A needle operating mechanism for a needle having movable jaws, comprising a guide-way for the needle carriage, and a plate, pivotally mounted on the guide-way near the outer end thereof, and having a side extension thereon forming an inclined or cam surface in the path of a lever or arm pivotally mounted on the needle carriage, and said lever or arm having a. side extension thereon to extend over and engage said inclined or cam surface, and a second plate, pivotally mounted near the inner end of said guide-way, and having an extension thereon to rest upon the upper edge of the guideway, said second plate in the path of said pivoted lever or arm on the needle carriage, and adapted to be engaged by the extension on said lever or arm, which extension passes onto said plate, and off of the inner end thereof, and back under it on the return of the needle carriage, and means for operating end, a cam lever connected to said intermethe needle carriage, comprising a link to a d1ate lever, and a drlven cam for operating lOCklIlg lever or arm, and sald rocking lever said cam lever.

or arm, pivotally mounted at its lower end WILLIAM WATTIE. an adjust-able connector from said lever or Witnesses:

arm to an intermediate lever, and said in- J. C. DEWEY,

termediate lever, pivotally mounted at one M. HAAS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

